BANDYOPADHYAY, A. .; SINGH, G. N. . ESTIMATION OF RATIO OF POPULATION VARIANCES IN ABSENCE AND PRESENCE OF NON - RESPONSE. Journal of Reliability and Statistical Studies, [S. l.], v. 8, n. 01, p. 77–93, 2015. Disponível em: https://journals.riverpublishers.com/index.php/JRSS/article/view/21081. Acesso em: 3 jun. 2026.